How severe is CVE-2019-14475?

CVE-2019-14475 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2019-14475 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-14475?

CVE-2019-14475 primarily affects Eq-3 Ccu2 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2019-14475?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2019-14475 published?

CVE-2019-14475 was published on 2019-08-05 and last updated on 2026-06-17.

CVE-2019-14475

CVE-2019-14475 is a high-severity vulnerability in Eq-3 Ccu2 Firmware with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-862
Affected product: Eq-3 Ccu2 Firmware
Published: 2019-08-05
Last modified: 2026-06-17

Description

eQ-3 Homematic CCU2 2.47.15 and prior and CCU3 3.47.15 and prior use session IDs for authentication but lack authorization checks. An attacker can obtain a session ID from CVE-2019-9583, resulting in the ability to read the service messages, clear the system protocol, create a new user in the system, or modify/delete internal programs.

Frequently asked questions

What is CVE-2019-14475?: eQ-3 Homematic CCU2 2.47.15 and prior and CCU3 3.47.15 and prior use session IDs for authentication but lack authorization checks. An attacker can obtain a session ID from CVE-2019-9583, resulting in the ability to read the service messages, clear the system protocol, create a new user in the system, or modify/delete internal programs.
How severe is CVE-2019-14475?: CVE-2019-14475 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2019-14475 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-14475?: CVE-2019-14475 primarily affects Eq-3 Ccu2 Firmware. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2019-14475?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2019-14475 published?: CVE-2019-14475 was published on 2019-08-05 and last updated on 2026-06-17.

References

https://psytester.github.io/CVE-2019-14475

Affected products (2)

cpe:2.3:o:eq-3:ccu2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:eq-3:ccu3_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Eq-3 Ccu2 Firmware

CVE-2019-10122 — Critical (CVSS 9.8): eQ-3 HomeMatic CCU2 devices before 2.41.9 and CCU3 devices before 3.43.16 have buffer overflows in the ReGa ise GmbH…
CVE-2019-10121 — Critical (CVSS 9.8): eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.15 use session IDs for authentication but lack…
CVE-2019-10119 — Critical (CVSS 9.8): eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.16 use session IDs for authentication but lack…
CVE-2019-14423 — High (CVSS 8.8): A Remote Code Execution (RCE) issue in the addon CUx-Daemon 1.11a of the eQ-3 Homematic CCU-Firmware 2.35.16 until…
CVE-2019-14473 — High (CVSS 8.8): eQ-3 Homematic CCU2 and CCU3 use session IDs for authentication but lack authorization checks. Consequently, a valid…
CVE-2019-10120 — High (CVSS 8.8): On eQ-3 HomeMatic CCU2 devices before 2.41.8 and CCU3 devices before 3.43.16, automatic login configuration (aka…

All CVEs affecting Eq-3 Ccu2 Firmware →

Other CWE-862 (Missing Authorization) vulnerabilities

CVE-2026-65667 — Critical (CVSS 10.0): Missing authorization in Microsoft Teams allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-48168 — Critical (CVSS 10.0): PraisonAI is a multi-agent teams system. In versions prior to 4.6.40, the bundled Claude GitHub Actions workflow is…
CVE-2026-66012 — Critical (CVSS 10.0): SiYuan before v3.7.2 contains a missing authorization vulnerability in the POST /mcp kernel endpoint, which is gated…
CVE-2026-58275 — Critical (CVSS 10.0): Missing authorization in Azure DNS allows an unauthorized attacker to elevate privileges over a network.
CVE-2026-0092 — Critical (CVSS 10.0): In Package Manager, there is a possible device lock controller bypass due to a missing permission check. This could…
CVE-2026-33712 — Critical (CVSS 10.0): Typebot is a chatbot builder tool. In versions 3.15.2 and prior, the preview chat endpoint (POST…

Browse all CWE-862 (Missing Authorization) vulnerabilities →